The face of that Z valve should have a letter stamped into the metal. ie "W", "S", "G", "N" denoting the type of valve. Most were the "W" type, which was the standard. Though some of the valves from the Rental-Zs were not stamped.

The face of that Z valve should have a letter stamped into the metal. ie "W", "S", "G", "N" denoting the type of valve. Most were the "W" type, which was the standard. Though some of the valves from the Rental-Zs were not stamped.

Yes, they were from Rental Z's, and possibly an Icon. I've already sold most of these parts but I'm still trying to move the guns. If I get bored I may take one apart and check.

The rear sight thingy is from an Eagle 68 (ghetto duck). They took a spring fed tube magazine, but you could also just dump in 10 shots and flip the rear sight down and it would act as a stopper to keep them from falling out.